Please enable JavaScript.
Coggle requires JavaScript to display documents.
Modal verbs - Coggle Diagram
Modal verbs
Deduction
Must
Certainly true
May/might
Possibly true
May: permission
Can't
Imposibility
Obligation/necessity
Must
Specific occasion
Personal obligation
Strong recommendation
Prohibition: mustn't
Have to
General occasion
External obligation
Strong recommendation
No obligation/no necessity: don't have to
Abilitty and possibility
Can/could
Present
Past
Conditional
Be able to
Present: more formal
Past: more formal
Future
Present perfect
Gerund
Infinitive
Advice or opinion
Should/shouldn't or ought to/ought not to